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The measurement of the safety factor profile has been considered as an essential diagnostics for the International Thermonuclear Experimental Reactor (ITER). Without the presence of a neutral beam, the only reliable diagnostics which can fulfill the requirements for the q-profile determination is at present the polarimetry. The results are presented of calculations of the Faraday rotation and the Cotton-Mouton effect for various plasma configurations (considered as typical) and various beam geometries which can eventually be realized in spite of the restricted access. The calculations should help to find a decision for the wavelength and the number and the position of the observation chords of a possible polarimeter system on ITER. Technical questions concerning the implementation of such a system on ITER are not dealt with.

Additional information

Authors: NIESWAND C, Centre de Recherches en Physique des Plasmas, Association EURATOM � Confédération Suisse, Ecole Polytechnique Fédérale de Lausanne (CH)
Bibliographic Reference: Article: Diagnostics for Experimental Thermonuclear Fusion Reactors, Vol. 2 (1998), pp. 213-216
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